Electrical water heater



Aug. 12. 1924. 1,504,944

S. E. COOK ELECTRICAL WATER HEATER Filed Oct. 29. 1921 f A g lNvvENToR Jhezdonztom 9 B 5 a? if .mam i i" Q I Patented Aug. 12, 1924.

PATENT OFFICE,

SHELDO'N E. COOK, OF LINCOLN, NEBRASKA.

ELECTRICAL WATER HEATER.

Application filed October 29, 1921.

To all whom if may concern Be it known that I, SHELDON E. Coon, a citizen of the United States, residing at Lincoln, in the county of Lancaster and State of Nebraska, have invented a new and Improved Electrical Vater Heater, of which the following is a specification.

My invention relates to that class of water heaters in which heat generated by electrolytic action serves to raise the temperature of the fluid in which the heater is immersed, to that desired.

Primarily the invention has forits object to produce a heater small enough to be carried in the pocket and provided at its proximal end with a standard thread enabling it to be screwed into any standard electric light socket wherever such socketmay be located either on the electrolier, wall bracket or at the end of an extension line, etc. Y

In its general nature, the invention comprises a cylinder of suitable metal and insulating material, one end of which is of a suitable diameter and is provided with a standard male thread to screw into any standard socket, the cylinder containing` a carbon electrode shell, the threaded end of the metal shell having an inturned flange or diaphragm which is clamped between two insulating washers by a bolt that carries the inner electrode which projects into the outer electrode shell but is spaced therefrom, water circulating openings being provided in the outer metal shell above and below the electrode shell.

In its more detailed nature, the invention embodies those novel features of construction and arrangement of parts, all of which will be first fully described, then be specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which:

' Figure 1 is a perspective view showing the invention in use when applied to a wall bracket.

Figure 2 is a perspective view of the heater per se.

Figure 3 is a vertical longitudinal section of the same.

Figure 4 is a cross section on the line 1-41 of Figure 3.

In the drawing in which like numerals Serial No. 511,291.

and letters of reference designate like parts in all of the figures, 1 is the outer metallic shell or cylinder whose proximal end is provided with the standard male thread and an inturned flange or diaphragm 3 against which the inner and outer insulating washers and 5 are placed.

The washers 4 and 5 are held in clamp` ing engagement with the diaphragm 3 by the bolt 6 which secures the inner electrode 7 in place, a washer 9 and nut being provided to cooperate with the bolt 6.

The shell 1 is provided with an inner electrode shell 10 that is spaced from the electrode .7. The shell 10 is forced into 'the shell l or secured therein in any other suitable way and the shell 1 is provided with water circulating holes 1l above and below the place of location of the electrode 10.

The bolt G has its head projected beyond the washer 5 so as to form one of the terminal contacts of the heater, the other Acontact being made by the thread 2 with the female thread of the socket in a manner similar to the provisions made for connecting an electric light bulb with this socket.

It will thus be seen that my invention provides a simple device which can be made small enough to be carried in the pocket and which can be instantly attached to any standard electric light socket wit-hout the necessity of employing special fixtures or yextension cords.

IVhen applied to a bracket socket as shown in Figure 1 for example, the user takes the vessel containing water or other fluid which he wishes to heat and holds it up so as to immerse the heater in the fluid when, upon turning on the current at the socket switch, the fluid will be raised to the desired temperature.

That I claim is:

1. An electric water heater comprising two members, one terminating in a standard male thread, the other terminating in a contact button projected beyond the threaded end of said first member and insulated therefrom, whereby the heater may be screwed into a standard electric socket and effect electrical connection therewith for the purposes described.

2. An electric heater comprising a cylinder having a standard male thread at one end, an inturned flange at the threaded end, an outer electrode supported in engagement with and Within said shell and spaced above the open end thereof, said shell having openings for Water circulation, a pair of insulating disks engaging said inturned flange on opposite sides, an inner electrode, a bolt passing through said disks and said inner electrode and a nut on the bolt for securing the disks with the inner electrode in piace, said bolt having a terminal-contact head, al1 being arranged whereby said shell may be screwed into a standard socket for the purposes set forth.

SHELDON E. COOK. 

